Syngamy and Cell Cycle Control
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منابع مشابه
The Evolution of Sex through the Baldwin Effect
This article suggests that the fundamental haploid-diploid cycle of eukaryotic sex exploits a rudimentary form of the Baldwin effect. With this explanation for the basic cycle, the other associated phenomena can be explained as evolution tuning the amount and frequency of learning experienced by an organism. Using the well-known NK model of fitness landscapes, it is shown that varying landscape...
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The adaptive function of sex remains, today, one of the major unsolved problems in biology. Fundamental to achieving a resolution of this problem is gaining an understanding of the function of meiosis. The sexual cycle in eukaryotes has two key stages, meiosis and syngamy. In meiosis, typically a diploid cell gives rise to haploid cells. In syngamy (fertilization), typically two haploid gametes...
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The origin of sex is becoming a vexatious issue for Evolutionary Biology. Numerous hypotheses have been proposed, based on the genetic effects of sex, on trophic effects or on the formation of cysts and syncytia. Our approach addresses the change in cell cycle duration which would cause cell fusion. Several results are obtained through graphical and mathematical analysis and computer simulation...
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Background & Aim: Chlorine has been known as a mucus membranes and respiratory tract irritant. This gas can increase free radicals which cause cell damage. The aim of the present study was to measure DNA content and cell cycle in white blood cells after chronic chlorine poisoning. Materials & Methods: A clinical experimental study was carried out on 80 male mice(40 mice as sample and 40 as ...
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Background: Gastric cancer is among the most common malignancies in certain parts of the world, such as northwest Iran. miRNAs are small and single-stranded noncoding RNAs with about 19-23 nucleotides. Several studies have shown that miRNAs play important roles in gastric tumorigenesis. The aim of this study was to determine the effect of miRNA-1266-5p repression on the cell survival and altera...
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تاریخ انتشار 2005